EP2688511B1 - Zahnimplantatsystem - Google Patents

Zahnimplantatsystem Download PDF

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Publication number
EP2688511B1
EP2688511B1 EP12712384.2A EP12712384A EP2688511B1 EP 2688511 B1 EP2688511 B1 EP 2688511B1 EP 12712384 A EP12712384 A EP 12712384A EP 2688511 B1 EP2688511 B1 EP 2688511B1
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EP
European Patent Office
Prior art keywords
neck
dental implant
insertion instrument
opening
implant system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12712384.2A
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English (en)
French (fr)
Other versions
EP2688511A1 (de
Inventor
Harmen Frederik Klein Woolthuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
White Implants Development Corp Bv
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White Implants Development Corp BV
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Publication date
Application filed by White Implants Development Corp BV filed Critical White Implants Development Corp BV
Publication of EP2688511A1 publication Critical patent/EP2688511A1/de
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Publication of EP2688511B1 publication Critical patent/EP2688511B1/de
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0012—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys

Definitions

  • the invention relates to a dental implant system comprising an insertion part and an insertion instrument according to the pre-amble of claim 1.
  • Such implant systems are known and are used as a replacement for missing dental elements in people's mouths. This is done by drilling a hole in the jawbone and screwing or pressing the insertion part therein. On the insertion part's neck part projecting from the gums, an abutment, healing cap or similar insertion element is subsequently placed, and at a later point in time, although straightaway is also possible in principle, a dental prosthesis or crown or similar element is placed.
  • Insertion parts are increasingly manufactured from zirconium oxide-containing material, whether or not stabilised by means of yttrium, in order to preclude disadvantages occurring as a result of the application of titanium insertion parts.
  • the gray titanium colour no longer shines through in the gums or that the development of a visible, metal, grey edge of the insertion part in the course of time, when the gums retract further, no longer takes place.
  • the insertion parts of two-part dental implants are generally fitted in the jawbone by means of an insertion instrument which is inserted into the recess of the neck part of the insertion part.
  • This implant system yields very good results in terms of a high primary stability, that is to say, a high stability immediately after the screwing operation and before the insertion part and the jawbone grow together, by virtue of the fact that applying a large force of the order of 30 to 45 Ncm to screw the insertion part into the jawbone has proved to be feasible.
  • this has the advantage that the insertion part can be loaded immediately, on the proviso that the bone quality is sufficient.
  • Other advantages are the substantially reduced risk of complications and the suitability of placing the insertion part directly after the extraction of the original tooth or molar, and the possibility of the insertion part being placed by a general dental practitian or endodontologist without the patient having to be referred to a specialist.
  • a dental implant system is known from US 6,247,932 B1 .
  • a dental implant anti-rotationally engaged by a insertion instrument holder are provided in a case comprising two detachably interconnected receptacle parts. Once the case is opened the holder can be gripped using some instrument and the implant held by the holder can be screwed into the bone.
  • the holder has a bridge part in the form of an empty blind bore.
  • the invention particularly aims at providing an improved implant system of the above-described type, wherein the insertion part is not damaged anymore during the tightening operation.
  • the bridge part encloses the neck part situated next to the projections, such that there is an interspace between bridge part and neck part, as a result of which, when the driving part of the opening embraces the projections of the neck part, contact between said bridge part and said neck part no longer takes place and there is certainly no mechanical load.
  • the bridge part with respect to the longitudinal axis of the insertion instrument, is laterally widened with respect to the driving part, in any radial direction with respect to said longitudinal axis makes it possible to ensure that there is sufficient intermediate space between the neck part and the bridge part, also in the case of straight, i.e. non-receding, neck parts.
  • the bridge part of the opening of the insertion instrument is contiguous to the driving part, in a non-staggered manner, and widens gradually in an inward direction.
  • the intermediate space between the neck part and the bridge part increases with the distance to the driving part.
  • the intermediate space increases at locations where an increase is required for the purpose of a limited oblique position of the insertion instrument with respect to the insertion part. This makes it possible to ensure that there is sufficient intermediate space also in the case of a straight, i.e. non-receding, neck part of the insertion part.
  • An embodiment of the dental implant system according to the invention is characterized in that the interspace is such that it remains intact up to an oblique position of approximately 5 degrees of the insertion instrument with respect to the longitudinal axis of the insertion part.
  • the interspace is such that it remains intact up to an oblique position of approximately 5 degrees of the insertion instrument with respect to the longitudinal axis of the insertion part.
  • the walls of the driving part are prismatic and the bridge part is laterally bounded by one or more walls, which are also prismatic and which are aligned with the walls of the driving part.
  • This embodiment is favourable from a production-technical point of view and is suitable for an insertion part with a neck part which is embodied so as to recede to a limited degree in the proximity of the neck end face, i.e. it narrows in the direction of the neck end face.
  • auxiliary insertion instrument by means of which the insertion part can be brought to the mouth and screwed into the jawbone hole to some extent,i.e. at least to the point where the external screw thread of the insertion part engages in the pre-tapped internal screw thread of the jawbone hole, without the insertion part being contacted and hence possibly being contaminated.
  • the auxiliary insertion instrument can be removed from the mounth of the person and the insertion part can be screwed further into the jawbone by means of the insertion instrument and tightened firmly.
  • Figure 1a shows a two-part dental implant system S comprising an elongated insertion part 1 and an insertion instrument 2.
  • the insertion part 1 is, viewed in the longitudinal direction, composed of, on the one hand, a screw part 3 with external screw thread 4, and, on the other hand, a neck part 5 which is located at one end of the insertion part 1 and which comprises a recessed portion 6 (see Figure 2b and Figure 2c ) in the neck end face 7 thereof which is suitable for fixing an abutment.
  • the neck part 5 is provided, at some distance from the neck end face 7, with one or more projections 8 which are situated at the circumference of the neck and which extend in the radial direction.
  • the insertion part 1 is entirely made of zirconium oxide-containing ceramic stabilised with yttrium, although, according to the invention, other zirconium-containing materials are also possible.
  • the insertion instrument 2 shown in greater detail in Figure 3a , comprises an elongated handle part 9 which ends in a socket part 10 having a socket end face 11 extending perpendicularly to the longitudinal axis of the handle part 9.
  • the socket part 10 has an opening 12 which terminates at the socket end face 11, see Figure 3b and 3c , which opening 12 has a driving part 13 and a bridge part 14 contiguous to said driving part 13 on the side of the driving part 13 facing towards the inside of the opening 12, i.e. the side facing the handle part 9 and facing away from the socket end face 11.
  • the opening 12 is laterally bounded by walls and has a cross-section at right angles to the longitudinal axis L (see figures 3a and 3c ), which is substantially hexagonal, i.e. not circular, and the shape and dimensions of which are suitable to at least partly accommodate the neck part 5 of the insertion part (as is shown in Fig. 1a and Fig. 1b ), and to transfer the tightening torque applied to the handle part 9 to the insertion part 1 through said six projections 8 situated around the neck.
  • the bridge part has the shape of a truncated round cone, i.e. a diameter which increases inwards in the opening 12, that is, in a direction away from the socket end face, and is contiguous to the driving part, in a substantially non-staggered manner.
  • the bridge part 14 encloses the neck part 16 (also see Fig. 1b and Fig. 2b for the neck part) situated next to the projections 8 and extending up to the neck end face, such that there is an interspace between said bridge part and said neck part.
  • the intermediate space can be attributed to, on the one hand, the slightly reduced diameter of the neck part 5 between the neck end face 7 and the projections 8 and, on the other hand, the increase of the diameter in the bridge part 14 in the direction of the handle part 9.
  • Each of these two measures can be applied separately, but in this exemplary embodiment, both measures are applied jointly, so that in all situations, including an occasinally occurring oblique position of the insertion instrument with respect to the insertion part up to approximately 5 degrees, an interspace remains between, on the one hand, the neck part 5 from the neck end face 11 to the projections 8 and, on the other hand, the bridge part 14.
  • the walls of the driving part 13 are substantially prismatic for, inter alia, enabling the insertion instrument to be provided on and removed from the projections 8 in a simple manner.
  • the depth of the opening 12 is such that the socket part 10 exactly encloses the entire neck part 5 of the insertion part 1 when said neck part 5 is pressed with the neck end face thereof against the end of the opening 12.
  • the bridge part is laterally widened, with respect to the longitudinal axis of the insertion instrument, relative to the driving part, in any radial direction with respect to said longitudinal axis, i.e. already at the transition from driving part to bridge part. In this manner an intermediate space is ensured also when insertion parts are used which are not reduced in size close to the neck end face.
  • FIG 4a shows an auxiliary insertion instrument 17 pertaining to the implant system shown in Figures 1 to 3 , and being used for providing the insertion part 1.
  • the auxiliary insertion instrument 17 is provided with a handle 18 and a top part 19 which, in this exemplary embodiment, is integral with the handle 18.
  • Said top part comprises three resilient legs 20.
  • the auxiliary insertion instrument 17 is made of stainless steel and the legs 20 are shaped so as to be so thin that they can resiliently move towards the longitudinal axis of the auxiliary insertion instrument 17 and hence also towards one another and away from one another.
  • the top ends 21 of the legs 20 are, in addition, slightly rounded off and smooth to prevent damage to the insertion part 1 when they are inserted into the opening 6 of said insertion part.
  • the legs 20 resiliently move towards each other when the top part 19 is provided into the opening of the insertion part 1.
  • said legs 20 have outer walls 22 which are jointly parallel to the longitudinal axis of the auxiliary insertion instrument 17, and next thereto, even more towards the handle 18, the legs 20 jointly have an outer diameter which becomes smaller in a direction towards the handle 18.
  • Said rounded off shape of the top ends and the parallel outer walls 22 and shrinking diameters make it possible to insert the legs 20 into the opening 6 of the insertion part 1 so as to be a tight fit therein, by pressing the auxiliary insertion instrument 17 in a simple manner and without further tools into the opening 6 of the insertion part 1. Subsequently, the insertion part 1 can be retained, supported and moved using only the auxiliary insertion instrument 17.
  • the auxiliary insertion instrument 17 and the insertion part 1 are jointly packed in a package consisting of a substantially cylindrical glass tube with a reclosable cover of metal, which package does not comprise synthetic resin elements nor other contaminating substances.
  • the package containing the auxiliary insertion instrument 17 and the insertion part 1 is sterilized, after which it is transported, stored and used for providing, in a medically sound as well as easy manner, the insertion part 1 into the pre-treated jawbone of a person and tightening it to some degree.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dental Prosthetics (AREA)

Claims (6)

  1. Zahnimplantatsystem (S), umfassend:
    - ein Einlegeteil (1) aus einem zweiteiligen Zahnimplantat, wobei das Einlegeteil länglich geformt ist und, in Längsrichtung gesehen, zusammengesetzt ist aus, einerseits einem Schraubenteil (3) das auf mindestens einem Teil der Länge davon mit einem externen Gewinde (4) versehen ist und, andererseits einem Halsteil (5), das sich an einem Ende des Einlegeteils (1) befindet, und das eine Aussparung (6) auf der Halsstirnseite (7) davon umfasst, die sich dazu eignet, ein Abutment, eine Einheilkappe oder ein ähnliches Einlegeelement anzubringen, wobei das Halsteil (5) in einem gewissen Abstand von der Halsstirnseite (7) mit einer oder mehreren Projektionen (8) versehen ist, die sich am Umfang des Halses befinden, und die sich in radialer Richtung erstrecken, und
    - ein Einführinstrument (2) zum Festschrauben des Einlegeteils (1) des zweiteiligen Zahnimplantats, wobei das Einführinstrument ein antreibbares längliches Griffteil (9) umfasst, das in einem Sockelteil (10) endet, das eine Sockelstirnseite (11) aufweist, die sich im Wesentlichen senkrecht zur Längsachse (L) des Griffteils (9) erstreckt, wobei das Sockelteil (10) eine Öffnung (12) aufweist, die an der Sockelstirnseite (11) endet, und von dem mindestens das Antriebsteil (13) seitlich durch eine oder mehrere Wände begrenzt ist, wobei das Antriebsteil (13) der Öffnung (12) einen Querschnitt im rechten Winkel zur Längsachse (L) aufweist, wobei der Querschnitt nicht kreisförmig ist, und wobei die Form und die Ausmaße davon geeignet sind, um das Halsteil (5) des Einlegeteils (1) zumindest teilweise aufzunehmen, und um das Anzugsdrehmoment, das auf das Griffteil (9) angewandt wird, durch die Projektionen (8) auf das Einlegeteil (1) zu übertragen, wobei die Öffnung (12) des Einführinstruments (2) mit einem Brückenteil (14) versehen ist, das an die Seite des Antriebsteils (13) angrenzt, die der Innenseite der Öffnung (12) zugewandt ist, dadurch gekennzeichnet, dass:
    a) das Einlegeteil (1) vollständig oder im Wesentlichen vollständig aus Material besteht, das Zirkonoxid enthält,
    b) das Brückenteil (14), das das Halsteil (16), das sich neben den Projektionen (8) befindet, umschließt, sich zur Halsstirnseite (7) erstreckt, und sodass es einen Zwischenraum zwischen dem Brückenteil (14) und dem Halsteil (16) gibt, wenn das Antriebsteil (13) der Öffnung (12) die Projektionen (8) des Halsteils (16) umschließt, und
    c) das Brückenteil (14) in Bezug auf die Längsachse (L) des Einführinstruments (2), das den Halsteil (16) umschließt, in Bezug auf das Antriebsteil (13) seitlich in jede radiale Richtung erweitert ist, in Bezug auf die Längsachse (L).
  2. Zahnimplantatsystem (S) nach Anspruch 1, dadurch gekennzeichnet, dass das Brückenteil (14) der Öffnung (12) des Einführinstruments (2) auf nicht gestaffelte Weise an das Antriebsteil (13) angrenzt, und sich allmählich nach innen erweitert.
  3. Zahnimplantatsystem (S) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zwischenraum derart bemessen ist, dass er bis zu einer Schrägstellung des Einführinstruments (2) von etwa 5 Grad in Bezug auf die Längsachse (L) des Einlegeteils (1) intakt bleibt.
  4. Zahnimplantatsystem (S) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Wände des Antriebsteils (13) prismatisch sind, und das Brückenteil (14) seitlich durch eine oder mehrere Wände begrenzt ist, die ebenfalls prismatisch sind, und die nach den Wänden des Antriebsteils (13) ausgerichtet sind.
  5. Zahnimplantatsystem (S) nach einem der vorhergehenden Ansprüche, ferner umfassend ein Hilfseinführinstrument (17) zur Bereitstellung des Einlegeteils (1), wobei das Hilfseinführungsinstrument (17) mit einem Griff (18), und mit einem Kopfteil (19) versehen ist, das damit verbunden, und derart geformt und dimensioniert ist, dass es eng in die Aussparung (6) im Halsteil (16) des Einlegeteils (1) passt, wobei das Kopfteil (19) mindestens zwei Schenkel (20) umfasst, deren Endabschnitte (21) elastisch aufeinander zu und voneinander weg bewegt werden können.
  6. Zahnimplantatsystem (S) nach Anspruch 5, dadurch gekennzeichnet, dass das Kopfteil (19) aus Metall besteht.
EP12712384.2A 2011-03-21 2012-03-19 Zahnimplantatsystem Active EP2688511B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2006435A NL2006435C2 (nl) 2011-03-21 2011-03-21 Tandheelkundig implantaatsysteem en bijbehorende inbrenginstrumenten.
PCT/NL2012/050168 WO2012128623A1 (en) 2011-03-21 2012-03-19 Dental implant system and associated insertion instruments

Publications (2)

Publication Number Publication Date
EP2688511A1 EP2688511A1 (de) 2014-01-29
EP2688511B1 true EP2688511B1 (de) 2019-05-08

Family

ID=45930942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12712384.2A Active EP2688511B1 (de) 2011-03-21 2012-03-19 Zahnimplantatsystem

Country Status (8)

Country Link
US (1) US9452111B2 (de)
EP (1) EP2688511B1 (de)
CN (1) CN103501725B (de)
BR (1) BR112013024185B1 (de)
ES (1) ES2727037T3 (de)
HK (1) HK1193334A1 (de)
NL (1) NL2006435C2 (de)
WO (1) WO2012128623A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707009A2 (de) * 2012-09-26 2014-03-31 Systems Schweiz Ag Z Herstellen einer Innenstruktur eines Keramikimplantates oder eines keramischen Aufbauelementes.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247932B1 (en) * 1997-05-26 2001-06-19 Franz Sutter Container holding a cartridge and a dental implant arranged therein

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416324B1 (en) 1999-12-10 2002-07-09 Sulzer Dental Inc. One step dental implant delivery system
AU2007281254A1 (en) * 2006-08-01 2008-02-07 Vitali Bondar Dental implant system and method
US7806693B2 (en) * 2007-04-23 2010-10-05 Nobel Biocare Services Ag Dental implant
US8038442B2 (en) * 2007-04-23 2011-10-18 Nobel Biocare Services Ag Dental implant and dental component connection
EP2145600A1 (de) * 2008-07-14 2010-01-20 Nobel Biocare Services AG Verbesserte Fixierung von zweiteiligen Zahnimplantaten
NL1036155C (nl) * 2008-11-05 2010-05-06 Eazy2 Implant Innovations B V Inbrengdeel van een tweedelig implantaat met inbrenginstrument.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6247932B1 (en) * 1997-05-26 2001-06-19 Franz Sutter Container holding a cartridge and a dental implant arranged therein

Also Published As

Publication number Publication date
CN103501725A (zh) 2014-01-08
US9452111B2 (en) 2016-09-27
NL2006435C2 (nl) 2012-09-24
BR112013024185B1 (pt) 2020-12-01
ES2727037T3 (es) 2019-10-11
HK1193334A1 (zh) 2014-09-19
EP2688511A1 (de) 2014-01-29
US20140113249A1 (en) 2014-04-24
WO2012128623A1 (en) 2012-09-27
CN103501725B (zh) 2016-06-22
BR112013024185A2 (pt) 2016-12-13

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